公开(公告)号：EP3346257A1

公开(公告)日：2018-07-11

申请号：EP17203416.7

申请日：2017-11-23

申请人： NIPPO SANGYO Co., Ltd.

发明人： ABE, Hironari ,  ABE, Kosuke ,  ISHIKAWA, Noburu

IPC分类号： G01N19/02 ,  F16B43/00

CPC分类号： F16B43/003 ,  F16B5/0642 ,  F16B21/09 ,  F16B2001/0035 ,  G01N19/02

摘要： Friction coefficient measurement apparatus (100) measures an angle of relative torsion caused by friction between a road surface friction measuring rubber attached strip and a road surface. The apparatus (100) includes a road surface friction measuring rubber attached strip (30) and an attaching bolt (31) which attaches said rubber attached strip (30) to a main body of the friction coefficient measurement apparatus, a diameter of a large-diameter circular part of an attaching bolt insertion opening (30A) in said rubber attached strip (30) is set slightly larger than a diameter of a bolt head of the attaching bolt (31) and a diameter of a small-diameter circular part thereof is set smaller than the diameter of the bolt head of the attaching bolt (31) and is slightly larger than the diameter of the bolt shaft thereof, and a spring washer for anti-loosening the attaching bolt (32) and a rubber attached strip fall prevention washer (33) are interposed. The apparatus is able to reduce operator time taken for work of replacing the road surface friction measuring rubber attached strip with a new one.